{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "474344",
    "entityType": "User",
    "nonce": "0x71bbbbb00c540e1439132bfd794cbe07c23c2bf93727d0a89cd281588409dff5",
    "signature": "0x3c6be81a8dc5850c554a80eec516e9a56d9ebd08fa41775bcbee5bac5de4752635a4484fae40521982353496b94c8f10e25558f7dbe3cc6c744e97487eb836f11b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}